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The XXX is the force to apply (in kgf) on a material of type YY (5 for aluminum alloys, 10 for copper alloys, 30 for steels). Thus a typical steel hardness could be written: 250 HB 30D 2. It could be a maximum or a minimum.
The B and C scales overlap, such that readings below HRC 20 and those above HRB 100, generally considered unreliable, need not be taken or specified. Typical values include: Very hard steel (e.g. chisels, quality knife blades ): HRC 55–66 (Hardened High Speed Carbon and Tool Steels such as M2, W2, O1, CPM-M4, and D2, as well as many of the ...
Tensile strength σ t) 124–290 MPa (18.0–42.1 ksi) ... ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate; ASTM B210: Standard ...
Estimating tensile strength [ edit ] If HV is first expressed in N/mm 2 (MPa), or otherwise by converting from kgf/mm 2 , then the tensile strength (in MPa) of the material can be approximated as σ u ≈ HV/ c , where c is a constant determined by yield strength, Poisson's ratio, work-hardening exponent and geometrical factors – usually ...
The ultimate tensile strength of a material is an intensive property; therefore its value does not depend on the size of the test specimen.However, depending on the material, it may be dependent on other factors, such as the preparation of the specimen, the presence or otherwise of surface defects, and the temperature of the test environment and material.
It cannot be work hardened, but is commonly heat treated to produce tempers with a higher strength but lower ductility. [1] Alternate names and designations include AlSi1MgMn, 3.2315, H30, and A96082. The alloy and its various tempers are covered by the following standards: [2] EN 485-2: Aluminium and aluminium alloys. Sheet, strip and plate.
Typical material properties for 6005A aluminum alloy include: [2] Density: 2.71 g/cm 3, or 169 lb/ft 3. Electrical Conductivity: 47 to 50% IACS. Young's modulus: 70 GPa, or 10 Msi. Ultimate tensile strength: 190 to 300 MPa, or 28 to 44 ksi. Yield strength: 100 to 260 MPa, or 15 to 38 ksi. Thermal Conductivity: 180 to 190 W/m-K.
7068-T6511 has typical ultimate tensile strength of 710 MPa (103 ksi) versus a similar product produced from 7075-T6511 that would have a typical ultimate tensile strength of 640 MPa (93 ksi). Typical yield strength for alloy 7068-T6511 is 683 MPa (99.1 ksi) versus 590 MPa (86 ksi) for a similar product produced from 7075-T6511. [2]